{"title":"一种减少DDS杂散的预失真方法","authors":"P. Delos, D. A. Leonard, J. M. Spada","doi":"10.1109/MWSYM.2014.6848239","DOIUrl":null,"url":null,"abstract":"We present a pre-distortion method for suppression of direct digital synthesizer (DDS) spurious. The method has been implemented in a field programmable gate array (FPGA) architecture with the FPGA generating the DDS waveform and controlling a high speed digital to analog converter (DAC). A generic approach is provided, followed by a detailed example. Measured data will be shown for a continuous wave (CW) case and a linear frequency modulated (LFM) waveform. It will be demonstrated that a practical calibration can achieve over 20dB spurious improvement.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"A pre-distortion method to reduce DDS spurious\",\"authors\":\"P. Delos, D. A. Leonard, J. M. Spada\",\"doi\":\"10.1109/MWSYM.2014.6848239\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We present a pre-distortion method for suppression of direct digital synthesizer (DDS) spurious. The method has been implemented in a field programmable gate array (FPGA) architecture with the FPGA generating the DDS waveform and controlling a high speed digital to analog converter (DAC). A generic approach is provided, followed by a detailed example. Measured data will be shown for a continuous wave (CW) case and a linear frequency modulated (LFM) waveform. It will be demonstrated that a practical calibration can achieve over 20dB spurious improvement.\",\"PeriodicalId\":262816,\"journal\":{\"name\":\"2014 IEEE MTT-S International Microwave Symposium (IMS2014)\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2014 IEEE MTT-S International Microwave Symposium (IMS2014)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MWSYM.2014.6848239\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSYM.2014.6848239","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
We present a pre-distortion method for suppression of direct digital synthesizer (DDS) spurious. The method has been implemented in a field programmable gate array (FPGA) architecture with the FPGA generating the DDS waveform and controlling a high speed digital to analog converter (DAC). A generic approach is provided, followed by a detailed example. Measured data will be shown for a continuous wave (CW) case and a linear frequency modulated (LFM) waveform. It will be demonstrated that a practical calibration can achieve over 20dB spurious improvement.
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